Nov 01 00:21:25.574 INFO checking mvanniekerk/abelian_sandpile against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Nov 01 00:21:25.574 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-7/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-55538/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +d7816399d50d407bbce1efe9dbadf8faaaf568fc-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 01 00:21:25.809 INFO blam! 4f1c3917f29ac1068c26e5a18fac5cdffdb01252feece77a74d25075f0ecd43f
Nov 01 00:21:25.815 INFO running `"docker" "start" "-a" "4f1c3917f29ac1068c26e5a18fac5cdffdb01252feece77a74d25075f0ecd43f"`
Nov 01 00:21:26.488 INFO kablam! usermod: no changes
Nov 01 00:21:26.595 INFO kablam!    Compiling num-derive v0.2.2
Nov 01 00:21:26.595 INFO kablam!     Checking png v0.12.0
Nov 01 00:21:28.784 INFO kablam!     Checking image v0.19.0
Nov 01 00:21:33.882 INFO kablam!     Checking abelian_sandpile v0.1.0 (/source)
Nov 01 00:21:35.473 INFO kablam! warning: function is never used: `print_map`
Nov 01 00:21:35.474 INFO kablam!   --> src/main.rs:65:1
Nov 01 00:21:35.475 INFO kablam!    |
Nov 01 00:21:35.475 INFO kablam! 65 | fn print_map(map: &Map) {
Nov 01 00:21:35.476 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 00:21:35.476 INFO kablam!    |
Nov 01 00:21:35.477 INFO kablam!    = note: #[warn(dead_code)] on by default
Nov 01 00:21:35.477 INFO kablam! 
Nov 01 00:21:35.478 INFO kablam! warning: function is never used: `add`
Nov 01 00:21:35.478 INFO kablam!    --> src/main.rs:107:1
Nov 01 00:21:35.479 INFO kablam!     |
Nov 01 00:21:35.479 INFO kablam! 107 | fn add(one: &Map, two: &Map) -> Map {
Nov 01 00:21:35.480 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 00:21:35.480 INFO kablam! 
Nov 01 00:21:35.481 INFO kablam! warning: function is never used: `negate`
Nov 01 00:21:35.481 INFO kablam!    --> src/main.rs:117:1
Nov 01 00:21:35.482 INFO kablam!     |
Nov 01 00:21:35.482 INFO kablam! 117 | fn negate(mat: &Map) -> Map {
Nov 01 00:21:35.482 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 00:21:35.483 INFO kablam! 
Nov 01 00:21:35.483 INFO kablam! warning: function is never used: `subtract`
Nov 01 00:21:35.484 INFO kablam!    --> src/main.rs:127:1
Nov 01 00:21:35.484 INFO kablam!     |
Nov 01 00:21:35.485 INFO kablam! 127 | fn subtract(one: &Map, two: &Map) -> Map {
Nov 01 00:21:35.485 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 00:21:35.486 INFO kablam! 
Nov 01 00:21:35.486 INFO kablam! warning: function is never used: `identity`
Nov 01 00:21:35.487 INFO kablam!    --> src/main.rs:131:1
Nov 01 00:21:35.487 INFO kablam!     |
Nov 01 00:21:35.488 INFO kablam! 131 | fn identity() -> Map {
Nov 01 00:21:35.488 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^
Nov 01 00:21:35.488 INFO kablam! 
Nov 01 00:21:35.490 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 00:21:35.490 INFO kablam!    --> src/main.rs:157:5
Nov 01 00:21:35.490 INFO kablam!     |
Nov 01 00:21:35.490 INFO kablam! 157 |     create_dir_all(directory);
Nov 01 00:21:35.490 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 00:21:35.490 INFO kablam!     |
Nov 01 00:21:35.490 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Nov 01 00:21:35.490 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 00:21:35.490 INFO kablam! 
Nov 01 00:21:35.652 INFO kablam! warning: function is never used: `print_map`
Nov 01 00:21:35.652 INFO kablam!   --> src/main.rs:65:1
Nov 01 00:21:35.652 INFO kablam!    |
Nov 01 00:21:35.652 INFO kablam! 65 | fn print_map(map: &Map) {
Nov 01 00:21:35.652 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 00:21:35.652 INFO kablam!    |
Nov 01 00:21:35.652 INFO kablam!    = note: #[warn(dead_code)] on by default
Nov 01 00:21:35.652 INFO kablam! 
Nov 01 00:21:35.652 INFO kablam! warning: function is never used: `add`
Nov 01 00:21:35.652 INFO kablam!    --> src/main.rs:107:1
Nov 01 00:21:35.652 INFO kablam!     |
Nov 01 00:21:35.652 INFO kablam! 107 | fn add(one: &Map, two: &Map) -> Map {
Nov 01 00:21:35.652 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 00:21:35.653 INFO kablam! 
Nov 01 00:21:35.653 INFO kablam! warning: function is never used: `negate`
Nov 01 00:21:35.653 INFO kablam!    --> src/main.rs:117:1
Nov 01 00:21:35.654 INFO kablam!     |
Nov 01 00:21:35.654 INFO kablam! 117 | fn negate(mat: &Map) -> Map {
Nov 01 00:21:35.654 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 00:21:35.654 INFO kablam! 
Nov 01 00:21:35.655 INFO kablam! warning: function is never used: `subtract`
Nov 01 00:21:35.655 INFO kablam!    --> src/main.rs:127:1
Nov 01 00:21:35.655 INFO kablam!     |
Nov 01 00:21:35.656 INFO kablam! 127 | fn subtract(one: &Map, two: &Map) -> Map {
Nov 01 00:21:35.656 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 00:21:35.656 INFO kablam! 
Nov 01 00:21:35.656 INFO kablam! warning: function is never used: `identity`
Nov 01 00:21:35.657 INFO kablam!    --> src/main.rs:131:1
Nov 01 00:21:35.657 INFO kablam!     |
Nov 01 00:21:35.657 INFO kablam! 131 | fn identity() -> Map {
Nov 01 00:21:35.658 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^
Nov 01 00:21:35.658 INFO kablam! 
Nov 01 00:21:35.658 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 00:21:35.658 INFO kablam!    --> src/main.rs:157:5
Nov 01 00:21:35.659 INFO kablam!     |
Nov 01 00:21:35.659 INFO kablam! 157 |     create_dir_all(directory);
Nov 01 00:21:35.659 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 00:21:35.660 INFO kablam!     |
Nov 01 00:21:35.660 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Nov 01 00:21:35.660 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 00:21:35.661 INFO kablam! 
Nov 01 00:21:35.703 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 9.19s
Nov 01 00:21:35.710 INFO kablam! su: No module specific data is present
Nov 01 00:21:36.823 INFO running `"docker" "rm" "-f" "4f1c3917f29ac1068c26e5a18fac5cdffdb01252feece77a74d25075f0ecd43f"`
Nov 01 00:21:37.088 INFO blam! 4f1c3917f29ac1068c26e5a18fac5cdffdb01252feece77a74d25075f0ecd43f